KALU INDUSTRY
KALU Industry--Leaf Metal Quality, Price, Credit Standing and Service
Add to Cart
For highly durable in bonding of:
General edge banding in the furniture industry
PVC and wood based profiles with:
Yellow chromated aluminium profiles
For interior finishing of motor vehicles:
PUR- hotmelts react with ambient air humidity. KLEIBERIT PUR-HM 702 is available in tightly closed metal containers suitable for platen melters. The package should only be open immediately before use.
The melting equipment must constructed in such a way that the adhesive is protected from ambient air humidity. It is important that the temperature can be controlled accurately.
Yellow chromated aluminium profiles must be preheated to approx. 40 °C immediately before bonding. The chrome coating must not be older then 4 weeks.
The application temperature for profile wrapping is from 140 °C to 160 °C. For edge banding the application temperature is in the range from 120 °C.
(veneer and resin paper can have higher application temperatures)
The required coat weight depends on the material: E.g. Profile wrapping:
-PVC-Foil 40 - 60 g/m2
(Incl. CPL-Material and thick papers) 50 - 70 g/m2
E.g. Edge banding onto:
Properties of the adhesive Basis: Polyurethane
Specific gravity: approx. 1.04 g/cm3
Viscosity (on the day of production) -Brookfield HBTD 10 rpm (mPa.s):
| Product Nr. | 120 °C | 140 °C | 160 °C |
| 702.5 | 60.000士 | 35.000 士 | 20.000 士 |
| 15.000 | 10.000 | 5.000 | |
| 702.7 | 100.000 士 | 60.000 士 | 35.000 士 |
| 25.000 | 15.000 | 10.000 | |
| 702.9 | 200.000 士 | 100.000 士 | 60.000 士 |
| 40.000 | 25.000 | 15.000 |
The speed, depending on the materials and the profile geometries used, is between 10-60 m/min and can be even higher. The final bond strength is reached after approx. 7 days.
Chemical cross linking of PUR hotmelts requires moisture. Therefore sufficient air humidity has to be present during processing.